• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2012년도 춘계학술발표대회 논문집
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• pp.475-479
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• 2012

Thermal energy storage (TES) systems using Microencapsulated phase change material (MPCM) have been recognized as one of the most advanced energy technologies in enhancing the energy efficiency and sustainability of buildings. We examined a way to incorporate MPCMs with building materials through application for wood-based flooring. Wood-based flooring is commonly used for floor finish materials of residential buildings in Korea. However, wood-based flooring has not performed the characteristic of heat storage. This study is aimed at manufacturing high thermal efficiency wood flooring by increasing its heat storage using MPCM. As a result, this study confirmed that MPCM is dispersed well in adhesive through the scanning electron microscopy analysis. From the differential scanning calorimetry analysis, it can be confirmed that this composite has the characteristic of a thermal energy storage material. Also, we analyzed how this composition was formed by physical combination through the Fourier transform infrared analysis. Also, we confirmed the bonding strength of the material by using the universal testing machine.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2016년도 추계 학술논문 발표대회
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• pp.126-127
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• 2016

The Korean government has developed and strengthened energy related regulations to pursue eco-friendly buildings since 1979. However, required design standards for energy based quantitative studies focused on energy performance in existing buildings are meagered. Therefore in this study, required energy performance by design standards for energy are analyzed. And a energy performance by retrofits for insulation improvement is studied using energy simulations.

• 한국측량학회지
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• 제39권4호
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• pp.223-233
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• 2021

건축물에서 소비되는 에너지의 체계적이고 지속적인 모니터링과 관리는 건물의 열효율을 산정하여 등급화하기 위해 중요하고, 궁극적으로 기후변화에 대처하고 환경 및 에너지 수급 정책의 효과적 수립을 목표로 하고 있다. 전 세계적으로 건축물은 총 에너지의 36%를 소비하고 있으며, 이산화탄소 배출량은 39%를 점유하고 있다. 본 연구의 목적은 건축물 등급제에 필수적인 건축물에서 방출되는 온도측정을 위해 드론 열적외선(TIR: thermal infrared) 영상을 이용하여 사진측량 기법으로 건물을 모델링하고 3차원 열공간 모델(thermo-spatial model)을 생성하여 분석하는 방안을 제시하는 것이다. 이를 위해 드론에 탑재된 열적외선 센서로부터 촬영한 광학 및 TIR 영상으로 항공삼각측량을 수행하여 모델링의 정확도를 비교 분석하였다. TIR 영상의 공간 및 방사 해상도는 광학영상에 비해 낮으므로 3D 건물 모델링의 객체 형태는 상대적으로 부정확하지만, 공간정보기반의 건축물 열에너지 측정을 위해 효과적으로 사용될 수 있으므로 사진측량 기술의 다양한 분야로의 응용을 제시한 것으로 의의가 있다고 판단된다. 열공간 모델은 건축물에서 방출되는 온도를 기반으로 소비되는 에너지를 정량적으로 산정하여 개별 건물의 에너지 등급을 책정하기 위한 기본 정보로 사용될 것으로 판단된다.

• 대한기계학회논문집 C: 기술과 교육
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• 제4권1호
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• pp.3-10
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• 2016

국내 히트펌프 유닛에 대한 성능 기준은 KS C 9306에서 제시하는 표준조건에서의 COP로 표현된다. 그러나 히트펌프 시스템이 실제 건물에 적용될 경우에는 표준조건에서 운전되는 것이 아니기 때문에 현장의 기후 조건, 건물의 특성에 따라 히트펌프 시스템의 성능은 다르게 나타난다. 본 논문에서는 주거건물을 대상으로 국내 주요 도시의 기후 조건에 따른 공기 대 공기 히트펌프 시스템의 연성능을 평가하여 기존의 BIN 데이터를 활용한 연성능 평가 결과와 정량적으로 비교 분석하였다. 연성능 평가도구로는 IPMVP 4.4.2에서 제시한 국제호환형 프로그램인 TRNSYS를 사용하였다. 공기 대 공기 히트펌프 유닛의 멀티 성능 데이터를 적용한 경우, 연성능 평가 기준인 APF는 BIN 데이터를 적용했을 때보다 전체적으로 높았으며, 부산이 2.36으로 가장 높았고, 대전이 2.29로 가장 낮았다.

• 한국태양에너지학회 논문집
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• 제39권5호
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• pp.29-40
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• 2019

In response to the rapid climate change, in order to save energy in the field of buildings, the country is planning not only zero energy buildings but also zero energy cities. In the Urban Development Project, the Energy Use Plan Report is prepared and submitted by predicting the amount of energy demand at the planning stage. However, due to the activation of zero-energy buildings and the increase in the supply of new and renewable energy facilities, the energy consumption behavior of buildings in the city is changing from the previous ones. In this study, to estimate urban energy demand of Zero Energy City, building energy demand forecasts based on "Passive plans for use of energy based primary energy consumption", "Actual building energy usage data from Korea Appraisal Board" and "data from Certification of Building Energy Efficiency Rating" as well as demand forecast according to existing "Consultation about Energy Use Plan Code" were calculated and then applied to Multifunctional Administrative City 5-1 zone to compare urban total energy demand forecasts.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2009년도 하계학술발표대회 논문집
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• pp.114-119
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• 2009

This study has been conducted to describe the establishment of national measures to reduce world energy consumption and $CO_2$ Emission. Particularly, Reductions in energy consumption from building operation is the most important part to achieve these national objectives. Element to evaluate the quantitative effects of these systems by having rationalized regulation and operation is essential, when planning for building energy reduction design. USGBC(US Green Building Council) have operated sustainable assessment method called LEED, which introduces baseline performance and evaluation direction for building simulation techniques. This research analyzed Quantitative assessments of the building energy consumption and analyzed baseline figures to provide comparative analysis with standard building settings.

• KIEAE Journal
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• 제17권1호
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• pp.43-48
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• 2017

Purpose: Building owners or residents have concerns to strive for energy-saving and environmental conservation by utilizing with eco-friendlier energy resources for their physical environment. In this paper, an algae façade system is proposed as an energy-friendly building component to improve energy productivity and indoor environmental quality, and this study aims at verifying alternative technologies for implementing building elevations that contain various colors equipped with algae façade systems and suggesting design guidelines to enhance both building performance and design values. Method: The color of algae is basically ranged about the saturation green, and it is hardly converted to other variations. Such a problem can be resolved through the artificial lights like LED (Light Emitting Diode) lamps to mix the color from the algae and buildings could possibly change the elevation in many ways under the influence of daylight. Result: As a result, the suggested system may increase the aesthetic aspect of the building in response to environmental changes. The system cannot possibly be applied for only new construction, but also it can be utilized with the existing buildings as well. The proposed system is expected to be applied not only a new construction and any existing buildings as well, and it will cover from the environmentally friendly energy generation in the industry to a new application system for increasing energy efficiency and the beauty of building envelopes.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 춘계 학술논문 발표대회
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• pp.113-114
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• 2015

Throughout the world, energy sector is increasing in importance. Reflecting this situation, the government has introduced an energy efficiency rating system for buildings. In particular, the government is planning to introduce the energy evaluator examination system. In this study will want to analyze the relevant sectoral perception for the energy evaluator through expert interviews and surveys. The research results are expected to contribute to the rational management of the energy evaluator system.

• 한국건축시공학회지
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• 제23권4호
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• pp.453-464
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• 2023

본 연구에서는 참여주체 중 설계자와 건축물에너지평가사의 관점에서 제로에너지 건축물 인증 활성화를 위한 중요도를 비교분석하였다. 두 집단 모두 정책, 기술, 교육, 인센티브, 홍보 순으로 중요한 것으로 분석되었다. 설계자의 경우, 에너지효율기준 강화나 에너지 전문가 양성 및 사무소 등록제가 인증 활성화에 중요한 요소로 나타났고, 건축물 에너지 평가사의 경우, 에너지 전문가 양성 및 사무소 등록제, 제로에너지건축물 설계 제도 정비가 중요한 요소로 나타났다. 이를 통해 정부 차원에서의 인증 활성화를 위한 현실적인 방안들을 도출하는데 기여할 수 있을 것으로 보여진다.

• Wind and Structures
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• 제14권3호
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• pp.253-283
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• 2011

This paper presents the field measurement results of wind effects on a super-tall building (CITIC Plaza, 391 m high) located in Guangzhou. The field data such as wind speed, wind direction and acceleration responses were simultaneously and continuously recorded from the tall building by a wind and vibration monitoring system during two typhoons. The typhoon-generated wind characteristics including turbulence intensity, gust factor, peak factor, turbulence integral length scale and power spectral density of fluctuating wind speed were presented and discussed. The dynamic characteristics of the tall building were determined based on the field measurements and compared with those calculated from a 3D finite element model of the building. The measured natural frequencies of the two fundamental sway modes of the building were found to be larger than those calculated. The damping ratios of the building were evaluated by the random decrement technique, which demonstrated amplitude-dependent characteristics. The field measured acceleration responses were compared with wind tunnel test results, which were found to be consistent with the model test data. Finally, the serviceability performance of the super-tall building was assessed based on the field measurement results.